Homework Help - September 2006

I have this one homework problem that I think I've gotten the answer to. It's solving a 3-variable problem using Cramer's Rule. The equation is:
x+y+z=6
2x+y-4z=-15
5x-3y+z=-10

My answer was (-1,3,4). Can anyone help me verify this? I'll add the steps I took to solve it below. See if you can find any errors. My teacher requires that we show our work, and I want to make sure that it's correct in its methodology.

2006-09-22 16:52:51 · 3 answers · asked by perriermb 1

2006-09-22 16:46:53 · 6 answers · asked by Riel 2

what is an other galaxy besides the milkyway?

2006-09-22 16:35:59 · 14 answers · asked by Anonymous

2 dice are rolled at them same time, what is the probability of getting a sum that is less than 6?

Can any one show me a formula for this kind of problem because I don't want to write every outcome and then count it takes forever....

2006-09-22 16:22:38 · 9 answers · asked by Boptimistic!!! 1

back in the early americans.......

please,,i have a project and its due monday so please!!!!!!

thanks!

and don't bother answering if you don't really know.....

2006-09-22 16:18:53 · 2 answers · asked by ev0ra5 2

Which one of the following statements is correct?

A.solubility of solid and liquids is affected by randomness and temperature.

B.increasing temperature and lowering pressure maximizes the siolubility of a gas in a liquid.

C.Energy has no affect on solubilty

D.when a solid dissolves,the attractive forces are weakened,and entropy decreases

2006-09-22 16:17:04 · 3 answers · asked by Anonymous

I needed to search information about Global Warming? I didn't really get it.

Can you give me a paragraph or two about "What is Global Warming?

Thank you♥

2006-09-22 15:47:34 · 11 answers · asked by Anonymous

A norman window has the shape of a rectangle surmounted by a semicircle. if the permeter is 30ft. , find a fuction that models the area of the window

2006-09-22 15:40:09 · 7 answers · asked by jls10 3

Example:

The idea was <<> in peoples minds

2006-09-22 15:36:15 · 5 answers · asked by Anonymous

I have to do a science project (8th grade) and i don't have any ideas for it. do you have a great idea or ideas? An interesting topic. If u did a science project already, what was it on? Where can i find information for a science project.

please help!

2006-09-22 15:05:29 · 10 answers · asked by ♥Roberta. 5

sean argued so [improbably, persistently, unseemly, or uncomprehendingly] for going to the movie that i finally agreed to go.

2006-09-22 14:43:54 · 9 answers · asked by RAINBOW 1

Please show me don't just tell me.

2006-09-22 14:42:15 · 5 answers · asked by Anonymous

Corporal Punishment and how children should be displined at school versus at home.

2006-09-22 14:37:56 · 7 answers · asked by Really need help! 1

Hello. I am a 7th grader and I just started going to a college prep school. Man, it is really challenging! I wanna talk about how bad history is, but I've gotta stick with the topic. My teacher asked us to write a rough draft of an essay. The topic was "What it means to be 12". I turned in the draft yesterday and got peers to edit my paper, and as I was reading my friends' papers, I realized that they had interesting first and last paragraphs. I am particularly weak in this area, so can you help me? And by the way, I my essay was about my life, family, friends, interests, and feelings. It's sort of like an autobiography, but I didn't talk much about basic facts (birth, height, etc.)

2006-09-22 14:36:05 · 8 answers · asked by CaliGurl♥ 6

Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 4750 N, F2 = 1200 N, F3 = 1000 N, and F4 = 3600 N.

2006-09-22 14:19:44 · 7 answers · asked by Anonymous

I am working on a case bnefing for the case of United States vs Nixon. I could not find it anywhere else. Do you have information for me to help me work on my paper?

2006-09-22 14:19:26 · 2 answers · asked by moana 1

2006-09-22 13:57:57 · 2 answers · asked by Anonymous

2006-09-22 13:50:41 · 7 answers · asked by hbkhhhdx 1

find the answer to the nearest thousandths.

2006-09-22 13:44:32 · 6 answers · asked by Sissy B 1

Do High School Freshman really get bullied?
By: Katelyn Josey
You walk into the front door. There are a lot of people staring at you as you walk the halls. It’s not because you’re pretty or popular, but because you’re a freshman.
At least, that’s what some people think of high school. Really its just all talk, no action, and its all just stereotypes as WIHS freshman Holly Berthy said, “I’ve never really seen anybody get put in a trashcan.” Are the first few days at high school really that bad? SHS freshman Sara Fox said “No, you’ve gotten to know everybody in middle school.”
You also hear rumors about how bad upperclassman can be but in real life they’re not bullies. Middles school actually has more violence and bullies! “People actually mature in high school,” Freshman Melody Gill said. “People say that only the freshman get beat up and bullied but I don’t see why. Everyone else in that school was a freshman at one time too!

2006-09-22 13:40:38 · 5 answers · asked by katelyn 1

2006-09-22 13:20:30 · 3 answers · asked by Anonymous

Hi. Can you possibly give me a step by step process of opening a CD case? Thanks..

2006-09-22 12:59:19 · 24 answers · asked by sheng 2

What is the correct term for 'the selling of church offices'. This occured around the Renaissance. It has six letters and the fourth letter is an 'o'. Ex: _ _ _ o _ _

2006-09-22 12:51:30 · 6 answers · asked by Slugbug13 3

I need help on how to make a graph on time and distance. Speed doesn't need to be in the graph, right?
I am really confused. We calculated the speed at which a wind up toy could go 1 meter, and now we have to make a graph.
any help?

2006-09-22 12:46:54 · 6 answers · asked by Lizzie 2

2006-09-22 12:30:56 · 6 answers · asked by Anonymous

I have to do a "culture box". It's a shoebox, i have to decorate the entire outside with pictures, put items in it to represent the culture, and it's due Tuesday.....no i'm not cheating, my teachers recommend Yahoo Answers.. (i only say this because i've asked for help on projects before and my veiwers weren't polite) Please! this is all i need:

--a site to go on to look up Ireland culture, or American Culture
--a site for pics of ireland or America (people, animals, plants)

Please and thank you everyone. bye

2006-09-22 12:24:32 · 12 answers · asked by KeaJay 2

Please and thanks its for a lit class

2006-09-22 12:18:17 · 11 answers · asked by Anonymous

2006-09-22 12:12:35 · 2 answers · asked by T.O. 2

2006-09-22 12:02:36 · 5 answers · asked by Anonymous

2006-09-22 12:00:45 · 11 answers · asked by Anonymous